From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gilles Chanteperdrix MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <17540.21517.871383.751462@domain.hid> Date: Mon, 5 Jun 2006 17:55:57 +0200 Subject: Re: [Xenomai-help] shm_open, ftruncate In-Reply-To: <4484365A.7090007@domain.hid> References: <4480595D.7040203@domain.hid> <17536.29324.723709.385494@domain.hid> <4484365A.7090007@domain.hid> List-Id: Help regarding installation and common use of Xenomai List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Lionel Perrin Cc: xenomai@xenomai.org Lionel Perrin wrote: > Ok, thanks, i'll try. My old pc will have some job... :) > > I still have a few questions : > - How can we load/unload posix skin ? When configuring your kernel, configure the posix skin as a module. A module xeno_posix.ko will then be compiled that you may load with modprobe and unload with modprobe -r. > - Will this shared memory be accessible to non rt-task ? > - What's the simplest way to share information with a non rt-task ? Shared memory are also accessible to non-rt tasks. Since user-space realtime and non-realtime threads from the same process reside in the same address space, the simplest way to share information from rt to non-rt tasks is to create them as threads of the same process. -- Gilles Chanteperdrix.